Sealing apparatus



July 21, 1925.

C. M. BIERNBAUM SEALING APPARATUS Filed Feb. 1; 1922 I 2 Sheets-Sheet 1 I INVENTORI O7zar2es772,.Bie2-n bmum,

w BY

" %W /I TTORNEYS.

' Patented July 21, 1925.

UNITED STA GEARLES MLBIERNBAUM, OF OCEAN GAEUE, NEW

SEALING AEEARATUS.

Application filed February To all whom it may concern:

Beit known tha I, CHARLE ERN- eA-uM, a ci i e of G r ny, r siding t Ocean Gate, in he "coun y of Oc anend State of New Jersey, have invented certain new and useful Improvements in Sealing Apparatus; and I do here y declare he following to b ful c a a x ct d scription of the invention, such as will e'nable -others skilled in the art to which it appert'ains to ma e and use the ame, efer ence being had'to the accompanying drawings, andt'o characters of reference narked thereon, which form a part of this speci fication.

Thisinvention has reference, generally, to that class of apparatus or devices used for sealing the waxed wrappers surrounding loaves vof bread, and the like; and, the present invention relates, more particularly, to a novel and simply constructed apparatus or devices for :pertectly and automatically sealing wrapped loaves of bread, or the like, in ,self sealing waxed paper or wrap- P p The present invention has for its principal objects to provide a novel and simply constructed sea-ling apparatus or dev ce of the general characterhereinafter more particularly set forth, which is strong and durable, is readily handled'and easy to operate, enabling the operator to feed into a heated and ELllwQOOlGCl runway of the device, loaves ofbread, or the like, wrapped in selt-sealing waxed paper, theapparatus at a heated point in said runway, causing the wax with which the paper vis impregnatedxto become semi-fluid, so as ellO seal the folded ends, and also the folded or over lapped portions of the wrapper between said ends, and at another point in said runway to cool the said sealed portions of the wrapper and thereby producing a wrapper-encased loaf delivered in a perfectly sealed condition ,from the end of the nunway of the sealing device or apparatus.

Other objects of .the present invention not at this time more particularly enumerated, will be clearly evident from the following detailed .description of the present invention.

lKVith the various objects .of the ,present invention in view, the said invention consists, .primarilp'in the nov =se l ng amps 1922- S ria 533 25 r us or evice here naf e mo e ly e r a d; t said i e ion c nsi t f irthermore, in the novel arrangements and comb ions of the several e ice nd Par as We l as n the de ail f th B0 1- structionv of he s id pa ts, all o which will b more an des i ed in t fel b ing sp c fi and n finally mb d in the clauses of the claims which are app nded to nd wh ch f rm an e e t a P of the said specification. I v

The inv nt on i a y illus rated in he a c mpanying d w ngs, n isfl s- F aws in a per p tiv vie i a i is pP a l or d vic f se lin the waxed wrappers of loaves of bread, and the like, said view showing one embodiment of the principles of the present invention; and Figure 2 is a horizontal vertical sectional representation of the same. 7

Figure 3 is a transverse vertical section of the device, said section being ta'lren on line 5- in sa Figure a d g res 4* and 5 are perspective views of a pair of standards or supporting devices adapted f or'use with t e e l ng app atu Figure 6 is'a transverse sectional representatio f t app ra s 1 i e, sa section belng taken on line 6-6 in said lligure l; and Figure l is a collective perspective View of a hotair chamber and a sheet of asbestos adapted for use therewith, said parts being shown in their detached re lation from the main member of the sealing app ra u e i Similar characters of reference are employed in all of the said herein-above described views, to indicate corresponding parts.

Referring now to the several figures of the drawings, the reference-character 1 indicates a complete sealing apparatus or de vice, made according to and embodying the principles of the present invention, the same comprising a loaf-receiving runway, ,preferably made of sheet-metal, for lightness in construction, although the said runway may be made of othersuitable material.

The said runway consists, essentially, of a base-member 2, and the longitudinally extending side-'wallsB and 4, extending verticall x and upwardly from said base,*so as to provide a runway or chute, having at one end thereof a receiving opening, asf5, and at the other end thereof a discharge opening, as 6. At the receiving opening, the said basen'ien'iber 2, and the said side-walls 3 and 1 are preferably and respectively provided with the downwardly flaring portion 7, and the laterally extending and outwardly flaring portions 8 and 9, arranged to provide a convenient loaf-receivingopening, as will be clearly evident. At the discharge opening or end 6, the said base-member 2 is preferably bent under and rearwardly, as at 10, and then forwardly, as at 11, all arranged to provide a standard-engaging and runway or chute-retaining means, as will be evident from an inspection of Figures 1 and 2 of the drawings, and for the purposes hereinafter more fully set forth. As shown in Figures 1, 2 and 6 of the drawings, the said sidewalls 3 and 1 are respectively provided with openings, as 12 and 13, and suitably disposed about the outer surfaceportions of the base-member 2 and the said side-walls 3 and 4, at the points where the said openings 12 and 13 are located, is a chambered heat-conveyor 1 1, usually of the construction and conformation represented more particularly in Figures 2, 6 and 7 of the drawings. As shown in said figures, the said heat-conveyor 1 L comprises a base 15 formed with an opening 16, upwardly projecting side-walls 17 and 18, respectively formed with the inwardly extending flanges 19 and 20, and with upwardly extending end-members, as 21 and 22. Connecting each pair of said end-members 21 and 22, are laterally extending end-walls 23 and 2 1, the upper portions 25 and 26 of the respective end-walls being angularly disposed, as shown, and being suitably connected with or secured to the angular marginal edge-portions 27 of the previously mentioned endmembers 21 and 22. The said portions 25 and 26 may also be provided with suitably disposed ventilating openings or perforations 28, if desired. The heat-conveyor, thus produced, is such that the runway or chute is snugly fitted in the spaces 29 and 30, bounded by the flanges 19 and 20, and the marginal edges 31 of the upwardly extending end-members 21 and 22, as shown more particularly in Figure 6 of the drawings, a protector-sheet 32 of asbestos, or similar material, being placed upon the flanges and against the lo Yer surface of the base-meniber 2 of the runway or chute, substantially as shown in Figures 2 and G of the drawings. in this manner, the base-portion of the runway or chute and the embracing portions the heat-conveyor 1 1 n'ovide a suitably f med chamber, in which air is heated, in the manner and for.the purposes presently described, and conveyed from chamber through the openings 12 and 13 to the sealing space between the basemember 2 and the side-walls 3 and 4': of the runway or chute, as will be clearly evident. At a suitable location between the said heat-conveyor and the discharge opening or end 6 of the runway or chute, the baseniembcr 2 is made with an outwardly pressed portion 33 to provide an opening 34:, and in like manner, the side-walls 3 and 4: may oe made with outwardly pressed portions 35 to provide the side-walls with openings 36.

Suitably secured to the under surface of the base-me1nber2, at or near the receiving opening thereof, is a suitablyformed bar or plate 37, having a member 38 extending at a right angle, downwardly from said bar or plate.

Adapted for use with the runway 01' chute of the sealing apparatus just de scribed are a pair of supports or standards, as 39 and 40, one of which, as 10, is of greater height than the other. The supports or standards are suitably secured upon a table or work-bench, as 41, for the reception in its operative position of the said runway or chute upon the said table or work-bench, in the manner shown in Figures 1 and 2 of the drawings, the previously described members and 11 of the base-member 2 being placed in supportedand retaining engagement with a connecting cross-bar 42 of the support or standard 39, and the marginal edge of the previously mentioned right-anglcd member 38 being made to rest in supporting engagement with the receiw ing channel 4 1 of a connecting cross-bar 43 of the support or standard 10. In connection with the sealing apparatus or device thus produced there is usec, in position beneath the heatconveyor 1 1, a heat-producing medium, usually in the form of a gasheater, as -15, although it will be clearly understood, that in connection with the heat conveyor, an; other suitable source or means for heating the same may be employed.

Having in the foregoing description set forth, in a general manner, a sealing apparatus, or device embodying the principles of the present invention, I will now briefly set forth the manner of using the same for sealing the folded ends of the waxed wrapper, and also for sealing the paper laps of the wrapper, extending along the bottom of the loaf of bread, or the like.

The sealing apparatus or device of the desired width, according to the length of the wrapped loaf to be sealed, having been mounted upon the supports or standards and 410, the heater 15 is lighted, so that the air contained in the heat-conveyor 14% is properly heated, and conveyed therefrom, through the openings 12 and 13, into the corresponding space between the two sidewalls 2 and 3 of the runway or chute of the apparatus, the sheet of asbestos 32 protecting the bottom of the runway orchute from. excessive heat. Any excess of heat is also carried off through the ventilating openings or perforations 28. The loaves of bread, wrapped as usual in wax-paper, with their non-sealedtolded ends, and their non-sealed bottomdaps, arenow fed by the operator, one after the other into the receiving opening or end 5 of therunway or chute, and pushed down the same over the heated space ofthe runw'a or chute. When passingover this space, t e wax in the portions of the overlapped parts of the wrapper is rendered semi-fluid, causing the wrappen-parts to readily stick-together, or to adhere to each other. Almost immediately, after leaving this heatedspace, the wax congeals and by the time the loaf reaches the openings 34: and 36, into and through which air, as a cooling medium, passes against the wrapped loaf, the wax is further congealed and is renderedsuficiently hard, so that a perfectly sealed wrapper of the self-sealing wax paper, about the loaf or bread, or the like, is produced.

i The sealed packages or loaves are finally and continuously forced, one after the other, fromlthe delivery or discharge end of "the runway or'chnte, into a receiveror basket, as 46, which may be placed at the end of the table or work benchand the said-runway or chute, substantially as shown in Figure 1 of the drawings.

Ofcourse, I amltully aware, that changes may be: made in the general arrangements and combinations of the several devices and parts, as wellxa s inthedetails of the constructioniof the said parts, without departing from the scope ofthe present invention as set forth in the foregoing specification, and as defined in the' clauses oi the claims which are appended theretor Hence, I do not limitrmy present invention to the exact arrangements. and combinati-onsof the various devices and parts, as described in the said specification, nor do I confine myself to the exact details of the construction of the said parts, as illustrated in the accompanying drawings. 1

I clainr:'- LA sealing apparatus for sealing the ends. and laps ofwaXed wrappers for packages, comprising a packagerec'eiving runway consisting of a base-member and longitudinally extending sidewalls, provided with a receiving end and a discharge end,said side-walls being provided with heat-conveying openings, a chambered heat-conveyor embracing outer portions of said base-member and said sidewalls, said heat-conveying openings being in communication with the chamber ofsaidheanconveyor, said runway being provided at other portions of its basemember and side-walls intermediate said heaboonveyor and the disoharge-end'of the apparatus with other openings, providing inlets for leading 'a ooolingmedium into the runway.

2. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of abase mem ber and longitudinally extending sidewalls, provided with a receiving end and a discharge end, said side-walls being provided with heat conveying openings ,,combined with a heatconveyor, consisting of avbase-member pro vided with an opening, a pair of side-walls adapted torbe disposed against the lower sur- LEace of said runway, end-members extending upwardly from said last mentioned sidewalls, and end-walls between said end-members, said end-members andend-walls embracing the side-walls of said runway, and all arranged to provide a heating chamber with which said heat-conveying openings are in communication, said runway being provided at other portions of its base-memher and sidewalls with other openings, providing inlets for leading a cooling medium into the runway.

3-; A sealing apparatus for sealing the ends and laps of waxed wrappers. for packages, comprising a package-receiving runway consisting of a base-member and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-walls being provided with heatconveying openings, combined with a heatoonveyor, consisting of a base-member provided with an opening, a pair of side-walls adapted to be disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said end members, said end-members being provided with ventilating perforations, said endmembers and end walls embracing the sidewalls-of said runway, and all arranged to provide a heating chamber with which said heat-conveying openings are in connection.

4. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of a base-member and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-walls being provided with heatconveying openings, combinedwith a heatconveyor, consisting of a bELSG-llllllbfl' provided Withan opening, a pair of side-walls adapted to be disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said endmembers, said end-members being provided Wlth ventilatlng perforations, said endm'embers andend-walls embracing the sidewalls 'of' said runway, and all arranged to provide a heating chamber witlrwhich said heat-conveying openings are in connection, and means located at another portion of said runway, between said heat-conveying openings and the discharge end of the run way for leading a cooling medium into the runway.

5. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of a basemember and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-walls being provided with heatconveying openings, combined with a heatconveyor, consisting of a base-member pro vided with an opening, a pair of side-walls adapted to be disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said endmembers, said end-members being provided with ventilating perforations, said. end members and end-walls embracing the sidewalls of said runway, and all arranged to provide a heating chamber with .which said heat-conveying openings are in communication, said runway being provided at other portions of its base-member and side-walls with other openings, providing inlets for leading a cooling medium into the runway.

6. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runay consisting of a base-member and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-walls being provided with heatconveying openings, combined with a heatconveyor, consisting of a base-member provided with an opening, a pair of side-walls, flanges extending inwardly from said sidewalls, a sheet of asbestos resting upon said flanges, said sheet of asbestos being disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said end-members, said end-members and end-walls embracing the side-walls of said runway, and all arranged to provide a heating chamber with which said heat-conveying openings are in communication.

7. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of a base-member and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-walls being provided with heat-conveying openings, combined with a heat-conveyor, consisting of a basemember provided with an opening, a pair of side-walls, flanges extending inwardly from said side-walls, a sheet of asbestos resting upon said flanges, said sheet of as bestos being disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side waiis, andcnd-walls between said end-members, said end-members and end-walls embracing the side-walls of said runway, and all arranged to provide a heating chamber with which said heat-conveying openings are in communication, and means located at another portion of said runway, between said heat-conveying openings and the dis charge end of the runway for leading a cooling medium into the runway.

8. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of a base-member and longitudinally extending sidewalls, provided with a receiving end and a discharge end, said side-walls being provided with heatconveying openings, combined with a heatconveyor, consisting of a base-member provided with an opening, a pair of side-walls, flanges extending inwardly from said sidewalls, a sheet of asbestos resting upon said flanges, said sheet of asbestos being disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said end-members, said end-members and end-walls embracing the side-walls of said runway, and all arranged to provide a heating chamber witlrwhich said heatconveying openings are in communication, said runway being provided at other portions of its base-member and side-walls with other openings, providing inlets for leading a cooling medium into the runway.

9. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of a base-member and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-walls being provided with heatconveying openings, combined with a heatconveyor, consisting of a base-member provided with an opening, a pair of side-walls, flanges extending inwardly from said sidewalls, a sheet of asbestos resting upon said flanges, said sheet of asbestos being disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said endmembers, said end-members being provided with ventilating perforations, said end-members and end-walls embracing the side-walls of said runway, and all arrangedto provide a heating chamber with which said heat-conveying openings are in communication.

1.0. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving runway consisting of a base-member and longitudinally extending side-walls, provided with a receiving end and a discharge end, said side-Walls being provided with heatconveying openings, combined with a heatconveyor, consisting of a base-member provided with an opening, a pair of side-walls, flanges extending inwardly from said side walls, a sheet of asbestos resting upon said flanges, said sheet of asbestos being disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-walls between said end-members, said end-members being provided with ventilating perforations, said end-members and end-walls embracing the side-walls of said runway, and

all arranged to provide a heating chamber with which said heat-conveying openings are in communication, and means located at another portion of said runway, between said heat-conveying openings and the discharge end of the runway for leading a cooling medium into the runway.

11. A sealing apparatus for sealing the ends and laps of waxed wrappers for packages, comprising a package-receiving run way consisting of a base-member and longi tudinally extending side-Walls, provided with a receiving end and a discharge-end,

said side-walls being provided with heatconveying openings, combined with a heatconveyor, consisting of a base-member provided with an opening, a pair of side-walls, flanges extending inwardly from said sidewalls, a sheet of asbestos resting upon said flanges, said sheet of asbestos being disposed against the lower surface of said runway, end-members extending upwardly from said last-mentioned side-walls, and end-Walls between said end-members, said end-members being provided with ventilating perforations, said end-members and end-walls embracing the side-walls of said runway, and all arranged to provide a heating chamber with which said heat-conveying openings are in communication, said runway being provided at other portions of its base-member and side-walls with other openings, providing inlets for leading a cooling medium into the runway.

' In testimony, that I claim the invention set forth above I have hereunto set my hand this 30th day of January, 1922.

CHARLES M. BIERNBAUM. Witnesses:

FREDK. C. FRAENTZEL, EVA E. DEsoH. 

